SMF - OPO

$330 Find Cheap Flights from Sacramento to Porto - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sacramento to Porto departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$755
Delta
Tue 11/24Wed 12/2
SMF - OPO • 2 stops
Cheapest one-way
$330
Multiple Airlines
Fri 10/16
SMF - OPO • 3 stops
Top airlines
Cheapest • from $755 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sacramento and Porto. You'll need at least 2 connections.
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Flight Deals

Cheap Flights from Sacramento to Porto (SMF-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sacramento to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sacramento to Porto

Tue, Nov 24 - Wed, Dec 2
Delta Logo
9:50 am - 10:00 pm
SMF
-
OPO
28h 10m
2 stops
Delta Logo
11:15 am - 8:15 pm
OPO
-
SMF
41h 00m
2 stops
$755Delta
Mon, Nov 23 - Wed, Dec 2
Delta Logo
2:15 pm - 10:00 pm
SMF
-
OPO
23h 45m
2 stops
Delta Logo
11:15 am - 11:45 pm
OPO
-
SMF
44h 30m
2 stops
$755Delta
Sun, Nov 15 - Tue, Nov 24
Lufthansa Logo
10:55 am - 12:50 pm
SMF
-
OPO
17h 55m
2 stops
Lufthansa Logo
6:00 am - 9:00 pm
OPO
-
SMF
23h 00m
2 stops
$757Lufthansa
Mon, Nov 16 - Thu, Nov 19
United Airlines Logo
7:41 am - 9:30 am
SMF
-
OPO
17h 49m
2 stops
United Airlines Logo
12:35 pm - 9:50 pm
OPO
-
SMF
17h 15m
1 stop
$763United Airlines
Mon, Nov 16 - Thu, Nov 19
United Airlines Logo
7:41 am - 9:30 am
SMF
-
OPO
17h 49m
2 stops
United Airlines Logo
12:35 pm - 9:45 am
OPO
-
SMF
29h 10m
2 stops
$763United Airlines
Sun, Jan 10 - Wed, Jan 13
United Airlines Logo
6:10 am - 3:20 pm
SMF
-
OPO
25h 10m
2 stops
United Airlines Logo
12:35 pm - 11:28 pm
OPO
-
SMF
42h 53m
2 stops
$784United Airlines
Mon, Nov 23 - Tue, Dec 1
Multiple Airlines Logo
7:00 am - 9:30 am
SMF
-
OPO
18h 30m
2 stops
Multiple Airlines Logo
6:00 am - 3:21 pm
OPO
-
SMF
17h 21m
2 stops
$792Multiple Airlines
Sun, Nov 1 - Sun, Nov 15
Multiple Airlines Logo
2:13 pm - 11:45 am
SMF
-
OPO
37h 32m
2 stops
Multiple Airlines Logo
6:15 am - 3:21 pm
OPO
-
SMF
41h 06m
2 stops
$792Multiple Airlines
Sun, Nov 1 - Sun, Nov 15
Lufthansa Logo
7:00 am - 3:20 pm
SMF
-
OPO
24h 20m
2 stops
Lufthansa Logo
6:00 am - 10:40 pm
OPO
-
SMF
24h 40m
2 stops
$794Lufthansa
Sun, Jan 10 - Wed, Jan 13
United Airlines Logo
8:50 am - 3:20 pm
SMF
-
OPO
22h 30m
2 stops
United Airlines Logo
12:35 pm - 9:25 am
OPO
-
SMF
52h 50m
2 stops
$796United Airlines
Booking Insights

KAYAK's insights & trends for Sacramento to Porto flights

Get data-powered insights and trends into flights from Sacramento to Porto to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Sacramento to Porto?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Sacramento to Porto were found on Delta ($755) and Lufthansa ($757).

Good to know

Cheapest flight

$330
Flight from Sacramento to Porto

When to book flights from Sacramento to Porto

Are your dates flexible? Find out the best times to travel from Sacramento to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sacramento to Porto

  • What is the cheapest flight from Sacramento to Porto?

    In the last 5 days, the lowest price for a flight from Sacramento to Porto was $330 for a one-way ticket and $755 for a round-trip.

  • Do I need a passport to fly between Sacramento and Porto?

    Yes, you’ll need a passport to travel to Porto from Sacramento.

  • Which aircraft models fly most regularly from Sacramento to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sacramento to Porto?

    Star Alliance is the only airline alliance operating flights between Sacramento and Porto.

  • How does KAYAK find such low prices on flights from Sacramento to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sacramento to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sacramento to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Sacramento is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sacramento to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Sacramento with another airline. Booking your flights between Sacramento and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sacramento to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Sacramento up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Sacramento to Porto

 
See real verified KAYAK customer reviews for airlines flying from Sacramento to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sacramento to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10046 reviews
7.3Comfort
6.6Food
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

8.0 ExcellentAnonymous, Apr 2026
SMF - DEN
Read more United Airlines reviews

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

The first flight was better in terms of the aircraft.

This was a short flight with no food. The attendants were great but the comfort was poor: just to cramped. The flight from Denver to Frankfort was excellent! Seating was roomier, food was good, service was good. This was a great experience.

Flight attendant was sincerely mean -- a true disgrace to an otherwise pretty crummy company anyway. Really embarrassing. I actually feel bad for United.

Bag check employee was on the phone the whole time… couldn’t even explain why I was missing tags and just looked at me funny and laughed while he was on the phone. Horrible customer service.

Everything you need to know for your flight from Sacramento to Porto

Information on your arrival and departure airports